Aaron Gell

How do you trade the comforts of a job you know well for the unknown of entrepreneurship? Just-retired race car driver Danica Patrick is finding out.

When Barbara Corcoran invests in a startup, founders gain a fully engaged partner with lots of outsize opinions. The only question is: Will they listen?

Self-improvement master Tim Ferriss has a surprising message for those who keep searching for something better: You have to know when to stop.